Security vendor Symantec has admitted that a "segment" of its source code has been compromised after hackers claimed to have gained access to the information by attacking Indian military servers using its products.

A post on Pastebin, which has been removed but remains in the form of a Google cache, claims that the information relates to Symantec's Norton AntiVirus software and will be released online in the near future.

The security company said it was working to identify how the information had been accessed. However, it said the code in question was only used in "two older enterprise products", one of which is now discontinued, while the code itself was "four or five years old".

"We are still gathering information on the details and are not in a position to provide specifics on the third party involved. Presently, we have no indication the code disclosure impacts the functionality or security of Symantec's solutions," the company said.

"This does not affect Symantec's Norton products for our consumer customers. Symantec's own network was not breached, but rather that of a third-party entity."

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